code: def get_feed_list(self, phase):
      records = self.get_records(phase)
      if records:
          feed_list = list(records[0].keys())
      else:
          feed_list = []
      return feed_list
  
imports: import io
  import csv
  import collections
  import numpy
  from tqdm import tqdm
  from paddlehub.compat.datasets.base_dataset import InputExample, BaseDataset
  from paddlehub.utils.log import logger
  from paddlehub.text.tokenizer import CustomTokenizer
  from paddlehub.text.bert_tokenizer import BertTokenizer
label_desc: Use image node_id 14 for calling the BaseNLPDataset obj's underlying member method code with example usage: obj.get_feed_list(phase) and returns: feed_list